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Seeking better understanding of the query summary

Seeking better understanding of the query summary

Explorer

I have an Impala query that has been running for over five hours. I look at the query summary and see this:

 

 

2016-04-07_14-38-06.png

I'm looking at the 'Avg Time' and 'Max Time' columns and they don't seem to bear any resemblance to the overall query time, my query has been running over five hours and yet the maximum value in the 'Max Time' column is only "58s816ms".

What do 'Avg Time' and 'Max Time' actually represent?

 

thanks

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